Vibrating motor



June 18, 1929.

J. M. H GH, JR VIBRATING MOTOR Filed Oct 16, 1926 JZ m Mae ker' H/gh, J;339 5 5 Gite 0140435 M7 Patented June 18,

4 1.118.0 4 PATENT OFFICE.

JOHN manna mu, m, or NEW YORK, is. Y.

vnma'rnm Io ron Application filed October 16, 1928. Serial Io. 142,139.

This invention relates broadly to vibrating I motors, particularly ofthe type emplrged in sound reproducing devices.

ne of the objects of this invention is the provision of a new and novelconstruction for vibrating motors, which is relatively simple and easyto construct, and. which is particularly ada ted for cheap manufactureand quick assem ly.

Another ob ect of this invention is the provision of a simple andnovelmeans for mounting all'the parts of a vibrating motor on thermanent magnet by means of a simple c amping arran ement. I

Another. object of t is invention is the provision of a single supportfor the pole pieces, solenoids and armature, which is adapted to bequickly clamped to'the permanent ma et.

These an I manyother objects are successfully sought by means. of theconstruction of this invention.

This invention resides substantially in the combination, construction,arrangement and relative location 'of parts, as will appear more fullyin the following description'.

Referring to the drawin in which the same reference numerals wi 1 beused in the several views to indicate the same or similar P A A I Fig. 1is a plan viewof my improved v1- brating moto Fig. 2 is an endelevational view oi the motor. Fig. 3 is a cross-sectional view withsome I 4 arts broken away, taken on the line 3-3 of ig. 2, looking inthe direction of the arrows, showing the pole pieces, solenoids, etc.

Fig. 4 is a croxv-sectional .view. with some parts broken away, taken onthe line 4-4 of ig. 1, lookingin the direction of the arrows.

Fig. 5 is a similar cross-sectional view taken on the line 55 of Fig. 1.

Fig. 6 is a perspective view of one of the.

pole pieces, and

Fig. 7 is a perspective view oi the armature and its mounting.

I am well aware that vibratin motors of this general construction are wel-known in the art, but I have provided certain principles ofconstruction which adapt vibrating motors of this type for ease inmanufacture and assembly. 7

One of the important features of the innet for use in m' vention residesin the construction employed for mounting all the parts of theinstrument on a single support, which is adapted to be clamped to thepermanent magnet.

In the drawings is shown the vibrating motor of the diflerentialtype,comprising a V-shaped permanent magnet 1. While I have disclosed a\I-shaped rmanent magdevice, am, of course aware that other orms, suchas the U-sha type, may be employed, but I have found that in actualmanufacture the V-shaped type of ma et is readil ada ted for manufacturein arge quantities. he pole pieces 2, 2, are su ported on a non-magneticplate 3, having e integral portions 4, 4 formed thereon at right angles.The pole ieces are clamped to t ese arms or plates 4 means of screws 5,which'project through slots 4' in the plates 4, to provide an adjustingmovement for the pole pieces. At 6 is re resented another in'te memberformed at right angles to the p ate 3 by means of which the entire motorconstruction may be readily mounted to any suitable support. Anotherprojection lying in the plane of plate 3, as shown at 7, on which ismounted the hollow post 8, in ali ment with a similar post 8 on the mainy of the plate3. A two-part resilient reed .support 10 is provided, theparts being clamped to the osts 8 by means of the screws 9, as is cleary shown in Fig. 5. Mounted between the two arts of the reed 10, is anarmature 11, whic is connected by means of a rod 12 to a spring arm 13,which is in turn, mounted on the plate 3 by means oi noid windings 15encircle the armature as is fcleanly shown in Fig. 5, and are disposedone pieces y reason of t e recesses formed therein by the projections2', as shown in Fig. 6. The method of supporting thwe coils within theserecesses by wedging them into place is clearly shown in Fig. 2. The arts10 of the need are formed with slots 1 so that they may be adjusted ontheir supporting posts to provide means for pro rl aligning the armaturebetweenthe p0 e pieces.

an enlarged portion 14. The sole- .100 are an ported inlace between thepoo as a voice current is supplied to the windin the 15, all as is wellknown in ings 15 the armature 11 vibrates betweenthe pole pieces 2, 2.When the direction of the current through the winding is such as to makeone end of the armature a north pole the other end is a south pole. As aresult the pole piece 2' on the north pole of magnet 1 attracts thesouth pole of the armature, while the south pole of magnet lat that endrepels it. The north pole of armature 11 is repelled by the north poleof magnet 1 and attracted by the south pole of magnet 1. When-thecurrent reverses the reverse op- -eration occurs. As a result thearmature vibrates back and forth at varying intensities dependent uponthe strength of the current this art. v

It will be seen from the foregoing description that I have provided avibrating motor of relatively few parts, which are so constructed as toprovide simple but accurate means for supportin' the various parts inoperative relation. e method of mounting the pole pieces, solenoidcoils, and armature. is very simple, and provides for ready means ofadjustment.

I am, of course, aware that many changes in the details of constructionand arrangement of parts will readily occur to those skilled in the art,without departing from the princi les of this invention, and I do not,there ore, desire to bev limited to the exact construction disclosed byme, but

-'rather to the field of invention as defined' in the appended claims.

What I seek to secure by United States Letters Patent is: v 1. Motivemeans for sound producing devices, comprising a permanent magnet, anon-magnetic plate attached to said magnet, pole pieces supported bysaid plate, a solenoid magnet, and an armature, also sup'-' ported onsaid plate, and means for clamping'said plate to said permanent magnet.

2. Motive means for sound producing devicescomp'rising a V-shapedpermanent mag-- net, in combination -with a non-magnetic plate attachedto said" magnet, pole pieces supported by said plate, having recesses inthe adjacent ends, solenoid .windin'gs supwithin said windings andbetween supported by said plate having recesses'in the adjacent ends,solenoid windin s supported in said recesses, posts on 'sai plate, I

a two-part reed on said posts, and an armature supported pole pieces. p

4. Motive means for sound producing'devices comprising a V-shapedpermanent ma by said reed between said net, in combination with anon-magneticplate attached to said magnet, polev pieces supported bysaid plate having recesses in the adjacent ends, solenoid windingssupported-in said recesses, posts on said plate,

-a two-part reed on said posts, and an armature supported by said reedbetween said pole pieces, said armature being-surrounded y saidwindings. 5, Motive means for sound producing devices comprising aV-shaped permanent magnet, in combination with a non-magnetic plateattached to said magnet, pole pieces supported by said plate havingrecesses inthe adjacent ends, solenoi windings supported in, saidrecesses, an armature supported on said plate between said ole pieces,a-resilient arm attached to said p ate, V

and means for rigidly attaching said armature and arm together.

In testimony whereof I have hereunto set my hand on this 13th day ofOctober, A. D., 1926. t

ooHN YMEEKER HIGH. 'JR.

